Ricoh FT7770 Service Manual page 181

30 April, '89
Caution: Do not leave the top unit open exposing an uncovered dram for long periods of time.
18.
Remove the drum protective sleeve [A] from the drum. Save the drum
protective sleeve for future use.
19. Pressing the drum shaft [B] to the left to prevent drum damage,
reinstall the cleaning unit [C].
until the cleaning unit drive gear [D] engages with the drum flange gear
[E].
20.
Reinstall the erase unit, the drum thermistor, the quenching lamp unit,
and pre-quenching corona unit. Reconnect the pre-quenching corona wire
cleaner connector.
21.
Reinstall the charge corona unit and reconnect the charge corona wire
cleaner connector.
22.
Reinstall the drum stay and the drum cover.
The cleaning unit must be inserted
3-10